Energy-saving complete ring network power distribution cabinet and side expansion sleeve for power distribution cabinet

Abstract

This invention relates to the field of smart grid power distribution equipment technology, and discloses an energy-saving complete ring network distribution cabinet and a side expansion sleeve for the distribution cabinet. The energy-saving complete ring network distribution cabinet includes a cabinet body and a connecting assembly fixedly installed on the outer side wall of the cabinet body. The connecting assembly includes a connecting plate fixedly installed on the outer side wall of the cabinet body, a blocking plate fixedly installed on the outer wall of the connecting plate, a pressing component slidably installed on the outer wall of the blocking plate, a clamping component slidably installed on the inner wall of the connecting plate, a push rod fixedly installed on the bottom outer wall of the clamping component, a compression spring fixedly installed on the outer wall of the clamping component, and a cross component fixedly installed at the end of the push rod away from the clamping component. The clamping component drives a magnetic extrusion column to lift a fixing film through a movable ring and an extrusion groove, achieving elastic secondary clamping of the conductive tube, increasing clamping friction, ensuring a tight and reliable conductive connection, effectively reducing contact resistance, reducing heat generation and power loss, and facilitating energy-saving operation of the power distribution system.

Description

Technical Field

[0001] This invention relates to the field of smart grid power distribution equipment technology, and in particular to an energy-saving complete ring network distribution cabinet and a side expansion bushing for the distribution cabinet. Background Technology

[0002] Existing ring network distribution cabinets require the installation of side expansion sleeves as connection ports to facilitate connections between distribution cabinets. However, the installation of these side expansion sleeves often requires operators to enter the cabinet for clamping and fixing. This is not only cumbersome and inefficient, but also poses a risk of electric shock due to the presence of high-voltage live components inside the cabinet. Furthermore, existing clamping structures are mostly single-sided driven or asynchronous, which can lead to eccentric installation of the side expansion sleeves, resulting in poor conductive contact, localized wear, and other problems that affect conductivity stability and increase power loss.

[0003] Secondly, during long-term operation, the alternating electromagnetic force generated by the large internal current, as well as the impacts from external environmental vibrations and load fluctuations, continuously act on the connection points of the side expansion bushings. Existing side expansion bushings lack effective buffer support structures, making it difficult to effectively absorb vibration energy. This can easily lead to bushing loosening and displacement, resulting in poor contact at conductive connections, increased contact resistance, and increased heat loss, thus violating the low-loss operation requirements of energy-saving complete ring network distribution cabinets.

[0004] In addition, the existing clamping structure of the side expansion sleeve is mostly rigid clamping, which makes it difficult to achieve elastic tight grip on the conductive tube. When the clamping friction is insufficient, the clamping is prone to loosening, resulting in unreliable conductive connection. This will also increase contact resistance and heat loss, making it difficult to meet the energy-saving and stable operation requirements of energy-saving complete ring network distribution cabinets. Summary of the Invention

[0005] Given the problems of existing technology, such as cumbersome installation of side expansion bushings, potential electric shock hazards, eccentric clamping, easy loosening and displacement, and insufficient buffering and shock resistance, an energy-saving complete ring network distribution cabinet is proposed.

[0006] Its purpose is to solve the problems of inconvenient installation, prominent safety hazards, loose connections and high energy consumption of existing side expansion sleeves.

[0007] The technical solution of the present invention is an energy-saving complete ring network distribution cabinet, including a cabinet body and a connecting component fixedly disposed on the outer side wall of the cabinet body; the connecting component includes a connecting plate fixedly disposed on the outer side wall of the cabinet body, a blocking plate fixedly disposed on the outer wall of the connecting plate, a pressing component slidably disposed on the outer wall of the blocking plate, a clamping component slidably disposed on the inner wall of the connecting plate, a push rod fixedly disposed on the bottom outer wall of the clamping component, a compression spring fixedly disposed on the outer wall of the clamping component, and a cross component fixedly disposed on the end of the push rod away from the clamping component;

[0008] The pressing component includes a U-shaped block slidably disposed on the inner wall of the connecting plate, a positioning ring fixedly disposed on the outer wall of the U-shaped block, extrusion inclined surfaces opened at the bottom ends of both sides of the U-shaped block, a fixing post slidably disposed on the inner wall of the U-shaped block, a connecting structure fixedly disposed on the bottom outer wall of the U-shaped block, an extrusion spring fixedly disposed on the bottom outer wall of the connecting structure, and a positioning structure fixedly disposed on the bottom outer wall of the extrusion spring.

[0009] Furthermore, the connection structure includes a sliding sleeve slidably disposed on the outer wall of the fixed column, an arc-shaped groove opened at the bottom end of the sliding sleeve, a sliding groove opened on the outer side wall of the sliding sleeve, and a sliding ring slidably disposed on the side wall of the sliding sleeve through the sliding groove. The outer wall of the top of the sliding sleeve is fixedly connected to the outer wall of the U-shaped block, and the outer wall of the bottom of the sliding sleeve is fixedly connected to the outer wall of the top end of the compression spring.

[0010] Furthermore, the positioning structure includes a limiting ring fixedly disposed at the bottom end of the compression spring, a blocking block slidably disposed on the outer wall of the bottom of the limiting ring, a damping rod symmetrically fixedly disposed on the outer wall of the blocking block, and a return spring disposed outside the damping rod.

[0011] Furthermore, the side wall of the limiting ring is slidably connected to the inner wall of the connecting plate, the end of the damping rod away from the limiting ring is fixedly connected to the inner wall of the connecting plate, and the end of the return spring away from the limiting ring is fixedly connected to the inner wall of the connecting plate.

[0012] Furthermore, the clamping component includes a clamping block slidably disposed on the inner wall of the connecting plate, a fixing ring fixedly disposed on the inner wall of the clamping block, a limiting groove formed on the outer wall of the fixing ring, a fixing membrane fixedly disposed on the outer wall of the fixing ring, a magnetic extrusion column slidably disposed on the inner wall of the fixing ring through the limiting groove, a movable ring slidably disposed on the outer wall of the fixing ring, an extrusion groove formed on the outer wall of the movable ring, and a magnetic sheet uniformly fixedly disposed on the outer wall of the movable ring.

[0013] Furthermore, the cross component includes a fixed frame fixedly disposed on the inner wall of the connecting plate, an movable hole opened in the inner wall of the fixed frame, a sliding groove opened in the outer wall of the fixed frame, a connecting rod slidably disposed on the outer wall of the fixed frame through the sliding groove, a positioning shaft fixedly disposed on the inner walls of both sides of the connecting rod, a magnetic rotating rod symmetrically rotatably disposed on the outer wall of the positioning shaft, and a magnetic column slidably disposed on the outer wall of the magnetic rotating rod, wherein the two ends of the magnetic column are fixedly connected to the inner wall of the connecting plate.

[0014] Furthermore, the inner wall of the fixing frame is slidably connected to the outer wall of the push rod through a movable hole, and the outer end face of the push rod is fixedly connected to the outer wall of the clamping block.

[0015] Another object of the present invention is to provide a side expansion bushing for a power distribution cabinet, which is installed in the above-mentioned energy-saving complete ring network power distribution cabinet. The bushing assembly includes a bushing assembly, which is installed in a connecting assembly. The bushing assembly includes a conductive tube, a connecting ring fixedly disposed on the outer wall of the conductive tube, a first skirt fixedly disposed on the outer wall of the conductive tube, and a second skirt fixedly disposed on the outer wall of the conductive tube.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The clamping component drives the magnetic extrusion column to lift the fixed film through the movable ring and extrusion groove, realizing elastic secondary clamping of the conductive tube, which greatly improves the clamping friction, makes the conductive connection always tight and reliable, effectively reduces contact resistance, reduces heat generation and power loss, and facilitates energy-saving operation of the power distribution system.

[0018] 2. When the clamping block moves, the linkage push rod and the cross component cause the magnetic rotating rod to unfold and form a stable buffer support structure. Together with the magnetic column, it ensures synchronous action and can effectively absorb the alternating electromagnetic force and environmental vibration during the operation of the distribution cabinet, prevent the bushing from loosening and shifting, and improve the long-term operational stability of the device.

[0019] 3. The operation method of pressing the positioning ring on the outside of the cabinet is adopted. The U-shaped block and the extrusion slope drive the clamping blocks on both sides to clamp synchronously. No operation inside the cabinet is required, which is highly safe. The sleeve is evenly stressed, which can effectively avoid poor contact and local wear caused by eccentric installation.

[0020] 4. The sliding sleeve 235, arc groove, sliding groove, blocking block, damping rod and return spring constitute a reliable mechanical self-locking structure, which can prevent the sleeve from loosening due to vibration and thermal expansion and contraction, ensure a long-term locked state, further reduce losses and improve operational safety. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the entire invention;

[0022] Figure 2 This is a partial structural diagram of the present invention;

[0023] Figure 3 This is a schematic diagram of the connection assembly and sleeve assembly of the present invention;

[0024] Figure 4 This is a cross-sectional view of the connecting component of the present invention;

[0025] Figure 5 This is an exploded structural diagram of the connection component of the present invention;

[0026] Figure 6 This is a schematic diagram of the overall structure of the connection component of the present invention;

[0027] Figure 7 This is a three-dimensional structural diagram of the pressing component of the present invention;

[0028] Figure 8 This is a schematic diagram of the overall structure of the connection structure and positioning structure of the present invention;

[0029] Figure 9 This is a schematic diagram of the sliding ring structure of the present invention;

[0030] Figure 10 This is a partial exploded view of the clamping component of the present invention;

[0031] Figure 11 For the present invention Figure 10 Enlarged structural diagram at point A in the middle;

[0032] Figure 12 This is an exploded structural diagram of the cross component of the present invention.

[0033] In the picture:

[0034] 1. Cabinet body; 2. Connecting components; 21. Connecting plate; 22. Blocking plate; 23. Pressing component; 231. U-shaped block; 232. Positioning ring; 233. Extrusion bevel; 234. Fixing post; 235. Connecting structure; 2351. Sliding sleeve; 2352. Arc groove; 2353. Sliding groove; 2354. Sliding ring; 236. Positioning structure; 2361. Limiting ring; 2362. Blocking block; 2363. Damping rod; 2364. Return spring; 237. Compression spring; 24. Clamping component; 241 242. Clamping block; 243. Fixing ring; 244. Limiting groove; 245. Fixing membrane; 246. Magnetic extrusion column; 247. Movable ring; 248. Extrusion groove; 249. Magnetic sheet; 200. Cross component; 251. Fixing frame; 252. Movable hole; 253. Slide groove; 254. Connecting rod; 255. Positioning shaft; 256. Magnetic rotating rod; 257. Magnetic column; 26. Push rod; 27. Compression spring; 38. Sleeve assembly; 39. Conductive tube; 30. Connecting ring; 31. First umbrella skirt; 32. Second umbrella skirt. Detailed Implementation

[0035] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0036] Example 1, referring to Figure 1 - Figure 6This invention provides an energy-saving complete ring network distribution cabinet, including a cabinet body 1 and a connecting assembly 2 fixedly connected to the outer side wall of the cabinet body 1. The connecting assembly 2 includes a connecting plate 21 fixedly connected to the outer side wall of the cabinet body 1, a blocking plate 22 fixedly connected to the outer wall of the connecting plate 21, a pressing component 23 slidably connected to the outer wall of the blocking plate 22, a clamping component 24 slidably connected to the inner wall of the connecting plate 21, a push rod 26 fixedly connected to the bottom outer wall of the clamping component 24, a compression spring 27 fixedly connected to the outer wall of the clamping component 24, and a push rod 26 fixedly connected to the bottom outer wall of the clamping component 24. The push rod 26 has a cross member 25 at the end away from the clamping member 24. The pressing member 23 includes a U-shaped block 231 slidably connected to the inner wall of the connecting plate 21, a positioning ring 232 fixedly connected to the outer wall of the U-shaped block 231, a compression slope 233 opened at the bottom ends of both sides of the U-shaped block 231, a fixing post 234 slidably connected to the inner wall of the U-shaped block 231, a connecting structure 235 fixedly connected to the bottom outer wall of the U-shaped block 231, a compression spring 237 fixedly connected to the bottom outer wall of the connecting structure 235, and a positioning structure 236 fixedly connected to the bottom outer wall of the compression spring 237.

[0037] The connecting structure 235 includes a sliding sleeve 2351 slidably connected to the outer wall of the fixed column 234, an arc-shaped groove 2352 opened at the bottom end of the sliding sleeve 2351, a sliding groove 2353 opened on the outer side wall of the sliding sleeve 2351, and a sliding ring 2354 slidably connected to the side wall of the sliding sleeve 2351 through the sliding groove 2353. The outer wall of the top of the sliding sleeve 2351 is fixedly connected to the outer wall of the U-shaped block 231, and the outer wall of the bottom of the sliding sleeve 2351 is fixedly connected to the outer wall of the top end of the compression spring 237.

[0038] Specifically, when the U-shaped block 231 moves downward, it causes the sliding sleeve 2351 of the connecting structure 235 to slide downward along the fixed post 234, compressing the spring 237. The arc groove 2352 at the bottom of the sliding sleeve 2351 presses against the blocking block 2362, causing the damping rod 2363 and the return spring 2364 to be compressed and contracted, providing clearance space for the sliding sleeve 2351. When the arc groove 2352 passes the blocking block 2362, the blocking block 2362 is reset under the action of the return spring 2364 and is locked into the sliding groove 2353, restricting the sliding sleeve 2351 and the U-shaped block 231 from rebounding upward, realizing mechanical self-locking. The positioning ring 232 moves downward and is locked into the gap between the connecting ring 32 and the first umbrella skirt 33. The positioning ring 232 is connected to the lower semi-circular ring by threads, completing the final fixation of the sleeve assembly 3.

[0039] Reference Figure 1 - Figure 9The positioning structure 236 includes a limiting ring 2361 fixedly connected to the bottom end of the compression spring 237, a blocking block 2362 slidably connected to the bottom outer wall of the limiting ring 2361, a damping rod 2363 symmetrically fixedly connected to the outer wall of the blocking block 2362, and a return spring 2364 sleeved on the outside of the damping rod 2363.

[0040] Specifically, when unlocking is required, the positioning ring 232 is pressed down again, the sliding ring 2354 moves down with the sliding sleeve 2351 and passes over the blocking block 2362, the upper inclined surface of the sliding ring 2354 guides the blocking block 2362 to avoid it again, releasing the limitation on the sliding sleeve 2351, and the sliding sleeve 2351 returns to its original position under the action of the compression spring 237.

[0041] Reference Figure 1 - Figure 9 The side wall of the limiting ring 2361 is slidably connected to the inner wall of the connecting plate 21, the end of the damping rod 2363 away from the limiting ring 2361 is fixedly connected to the inner wall of the connecting plate 21, and the end of the return spring 2364 away from the limiting ring 2361 is fixedly connected to the inner wall of the connecting plate 21.

[0042] Specifically, the positioning ring 232 of the pressing component 23 located outside the cabinet 1 is pressed down. The positioning ring 232 drives the U-shaped block 231 to move downward. The pressing slopes 233 at the bottom of both sides of the U-shaped block 231 simultaneously press the clamping block 241 of the clamping component 24, driving the clamping blocks 241 on both sides to move closer to each other along the inner wall of the connecting plate 21 and extend into the gap between the first umbrella skirt 33 and the second umbrella skirt 34, thereby achieving the initial clamping of the sleeve assembly 3.

[0043] Example 2, refer to Figure 1 - Figure 11 This is the second embodiment of the present invention, which differs from the first embodiment in that: the clamping component 24 includes a clamping block 241 slidably connected to the inner wall of the connecting plate 21, a fixing ring 242 fixedly connected to the inner wall of the clamping block 241, a limiting groove 243 formed on the outer wall of the fixing ring 242, a fixing membrane 244 fixedly connected to the outer wall of the fixing ring 242, a magnetic extrusion column 245 slidably connected to the inner wall of the fixing ring 242 through the limiting groove 243, a movable ring 246 slidably connected to the outer wall of the fixing ring 242, an extrusion groove 247 formed on the outer wall of the movable ring 246, and a magnetic sheet 248 uniformly fixedly connected to the outer wall of the movable ring 246.

[0044] Specifically, as the clamping blocks 241 on both sides approach each other, the fixed rings 242 move synchronously towards each other, and the movable rings 246 squeeze each other and slide along the inner wall of the clamping blocks 241 and the fixed rings 242. The magnetic squeezing column 245 is driven by the squeezing groove 247 to overcome the adsorption force with the magnetic sheet 248, extend inward along the limiting groove 243, push the fixed film 244 and make it bulge inward, and hug the outer wall of the conductive tube 31 in an elastic pressing manner, thereby realizing the secondary clamping and fixing of the sleeve.

[0045] Reference Figure 1 - Figure 12 The cross component 25 includes a fixed frame 251 fixedly connected to the inner wall of the connecting plate 21, an movable hole 252 opened in the inner wall of the fixed frame 251, a slide groove 253 opened in the outer wall of the fixed frame 251, a connecting rod 254 slidably connected to the outer wall of the fixed frame 251 through the slide groove 253, a positioning shaft 255 fixedly connected to the inner walls on both sides of the connecting rod 254, a magnetic rotating rod 256 symmetrically rotatably connected to the outer wall of the positioning shaft 255, and a magnetic column 257 slidably connected to the outer wall of the magnetic rotating rod 256. The two ends of the magnetic column 257 are fixedly connected to the inner wall of the connecting plate 21. The inner wall of the fixed frame 251 is slidably connected to the outer wall of the push rod 26 through the movable hole 252. The outer end face of the push rod 26 is fixedly connected to the outer wall of the clamping block 241.

[0046] Specifically, when the clamping block 241 moves, it drives the push rod 26 to move towards the movable hole 252 of the fixing frame 251, causing the compression spring 27 to be compressed between the clamping block 241 and the fixing frame 251. At the same time, the push rod 26 pushes the connecting rod 254 of the cross component 25 to slide along the slide groove 253, causing the positioning shaft 255 to shift. Under the limiting action of the fixedly installed magnetic column 257, the magnetic rotating rod 256 unfolds to the upper and lower sides. Under the adsorption action of the magnetic column 257, the opening and closing angles of the pair of magnetic rotating rods 256 are kept consistent, thereby enabling the cross components 25 on both sides to synchronously form a cross buffer support structure and be inserted into the gap of the square protrusion area between the first umbrella skirt 33 and the second umbrella skirt 34. The rest of the structure is the same as that of Embodiment 1.

[0047] Example 3, referring to Figure 1 - Figure 12 In the third embodiment of the present invention, a side expansion sleeve for a power distribution cabinet is provided, including a sleeve assembly 3. The sleeve assembly 3 is installed in a connecting assembly 2. The sleeve assembly 3 includes a conductive tube 31, a connecting ring 32 fixedly disposed on the outer wall of the conductive tube 31, a first umbrella skirt 33 fixedly disposed on the outer wall of the conductive tube 31, and a second umbrella skirt 34 fixedly disposed on the outer wall of the conductive tube 31.

[0048] Based on embodiments 1-3, the working principle of the present invention is as follows: the conductive tube 31 of the sleeve assembly 3 is aligned with the preset hole of the connecting plate 21 and pushed in until the second umbrella skirt 34 on the outer wall of the conductive tube 31 abuts against the blocking plate 22, thereby achieving axial positioning of the sleeve assembly 3. During this process, the second umbrella skirt 34 is used to achieve axial limiting, ensuring that the sleeve installation position is uniform, which facilitates the subsequent clamping and fixing of the connecting assembly 2.

[0049] The positioning ring 232 of the pressing component 23 located outside the cabinet 1 is pressed down. The positioning ring 232 drives the U-shaped block 231 to move downward. The pressing slopes 233 at the bottom of both sides of the U-shaped block 231 simultaneously press the clamping block 241 of the clamping component 24, driving the clamping blocks 241 on both sides to move closer to each other along the inner wall of the connecting plate 21 and extend into the gap between the first umbrella skirt 33 and the second umbrella skirt 34, thus achieving the initial clamping of the sleeve assembly 3. This process adopts external pressing operation, which does not require opening the cabinet door or entering the cabinet to operate, thus improving the installation safety. The simultaneous pressing on both sides makes the sleeve centrally positioned and the force is even, avoiding poor contact and local wear caused by eccentric installation.

[0050] When the clamping block 241 moves, it drives the push rod 26 to move towards the movable hole 252 of the fixed frame 251, so that the compression spring 27 is compressed between the clamping block 241 and the fixed frame 251. At the same time, the push rod 26 pushes the connecting rod 254 of the cross component 25 to slide along the slide groove 253, causing the positioning shaft 255 to move. Under the limiting action of the fixedly set magnetic column 257, the magnetic rotating rod 256 unfolds to the upper and lower sides. Under the adsorption action of the magnetic column 257, the opening and closing angles of the pair of magnetic rotating rods 256 are kept consistent, so that the cross components 25 on both sides synchronously form a cross buffer support structure and are inserted into the gap of the square protrusion area between the first umbrella skirt 33 and the second umbrella skirt 34. Since the cross buffer structure can effectively absorb the vibration generated by the alternating electromagnetic force on the internal parts and the vibration generated by the external environment during the long-term operation of the distribution cabinet, it reduces the impact of vibration on the bushing connection part, avoids the bushing loosening and displacement, and improves the operational stability.

[0051] As the clamping blocks 241 on both sides approach each other, the fixed rings 242 move synchronously towards each other. The movable rings 246 squeeze each other and slide along the inner wall of the clamping blocks 241 and the fixed rings 242. The magnetic squeezing column 245 is driven by the squeezing groove 247 to overcome the attraction force with the magnetic sheet 248 and extend inward along the limiting groove 243. It pushes the fixing film 244 and makes it bulge inward, so as to hug the outer wall of the conductive tube 31 in an elastic compression manner. This achieves secondary clamping and fixing of the sleeve, greatly improving the clamping friction, ensuring that the conductive tube 31 is tightly connected to the conductive components in the cabinet, maintaining a small contact resistance, reducing contact heating and power loss, and thus directly achieving energy saving.

[0052] When the U-shaped block 231 moves downward, it causes the sliding sleeve 2351 of the connecting structure 235 to slide downward along the fixed post 234, compressing the spring 237. The arc-shaped groove 2352 at the bottom of the sliding sleeve 2351 compresses the blocking block 2362, causing the damping rod 2363 and the return spring 2364 to contract under pressure, providing clearance space for the sliding sleeve 2351. When the arc-shaped groove 2352 passes the blocking block 2362, the blocking block 2362 resets under the action of the return spring 2364 and locks into the sliding groove 2353, restricting the sliding sleeve. 2351 and U-shaped block 231 spring back upwards to achieve mechanical self-locking. Positioning ring 232 moves down and gets into the gap between connecting ring 32 and first umbrella skirt 33. Positioning ring 232 and lower semi-circular ring are connected by threads to complete the final fixation of sleeve assembly 3. The reliable physical characteristics of the self-locking structure ensure that sleeve assembly 3 is difficult to loosen due to vibration and thermal expansion and contraction, ensuring long-term stable locking of the sleeve and avoiding increased contact resistance and temperature rise due to loosening, further ensuring low loss and energy-saving operation of the power distribution system.

[0053] When unlocking is required, the positioning ring 232 is pressed down again, and the sliding ring 2354 moves down with the sliding sleeve 2351 and passes over the blocking block 2362. The upper inclined surface of the sliding ring 2354 guides the blocking block 2362 to avoid it again, releasing the limit on the sliding sleeve 2351. The sliding sleeve 2351 returns to its original position under the action of the compression spring 237. The process is convenient to install and remove and the positioning is reliable. It can realize the quick replacement and debugging of the side expansion sleeve, improve the maintenance efficiency and versatility of the complete set of power distribution cabinets, and further strengthen the axial and radial fixation of the sleeve, making the structure of the whole device more stable and the energy-saving effect more lasting.

[0054] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. An energy-saving ring main unit power distribution cabinet, characterized in that, It includes a cabinet (1) and a connecting component (2) fixedly installed on the outer side wall of the cabinet (1); The connecting assembly (2) includes a connecting plate (21) fixedly disposed on the outer side wall of the cabinet (1), a blocking plate (22) fixedly disposed on the outer wall of the connecting plate (21), a pressing component (23) slidably disposed on the outer wall of the blocking plate (22), a clamping component (24) slidably disposed on the inner wall of the connecting plate (21), a push rod (26) fixedly disposed on the bottom outer wall of the clamping component (24), a compression spring (27) fixedly disposed on the outer wall of the clamping component (24), and a cross component (25) fixedly disposed on the end of the push rod (26) away from the clamping component (24). The pressing component (23) includes a U-shaped block (231) slidably disposed on the inner wall of the connecting plate (21), a positioning ring (232) fixedly disposed on the outer wall of the U-shaped block (231), a pressing inclined surface (233) opened at the bottom ends of both sides of the U-shaped block (231), a fixing post (234) slidably disposed on the inner wall of the U-shaped block (231), a connecting structure (235) fixedly disposed on the bottom outer wall of the U-shaped block (231), a pressing spring (237) fixedly disposed on the bottom outer wall of the connecting structure (235), and a positioning structure (236) fixedly disposed on the bottom outer wall of the pressing spring (237).

2. The energy-saving ring main unit power distribution cabinet according to claim 1, characterized in that: The connection structure (235) includes a sliding sleeve (2351) slidably disposed on the outer wall of the fixed column (234), an arc groove (2352) opened at the bottom end of the sliding sleeve (2351), a sliding groove (2353) opened on the outer side wall of the sliding sleeve (2351), and a sliding ring (2354) slidably disposed on the side wall of the sliding sleeve (2351) through the sliding groove (2353). The outer wall of the top of the sliding sleeve (2351) is fixedly connected to the outer wall of the U-shaped block (231), and the outer wall of the bottom of the sliding sleeve (2351) is fixedly connected to the outer wall of the top end of the compression spring (237).

3. The energy-saving complete ring network distribution cabinet according to claim 2, characterized in that: The positioning structure (236) includes a limiting ring (2361) fixedly disposed at the bottom end of the compression spring (237), a blocking block (2362) slidably disposed on the bottom outer wall of the limiting ring (2361), a damping rod (2363) symmetrically fixedly disposed on the outer wall of the blocking block (2362), and a return spring (2364) disposed outside the damping rod (2363).

4. The energy-saving ring main unit power distribution cabinet according to claim 3, characterized in that: The side wall of the limiting ring (2361) is slidably connected to the inner wall of the connecting plate (21), the end of the damping rod (2363) away from the limiting ring (2361) is fixedly connected to the inner wall of the connecting plate (21), and the end of the reset spring (2364) away from the limiting ring (2361) is fixedly connected to the inner wall of the connecting plate (21).

5. The energy-saving complete ring network distribution cabinet according to claim 4, characterized in that: The clamping component (24) includes a clamping block (241) slidably disposed on the inner wall of the connecting plate (21), a fixing ring (242) fixedly disposed on the inner wall of the clamping block (241), a limiting groove (243) opened on the outer wall of the fixing ring (242), a fixing membrane (244) fixedly disposed on the outer wall of the fixing ring (242), a magnetic extrusion column (245) slidably disposed on the inner wall of the fixing ring (242) through the limiting groove (243), a movable ring (246) slidably disposed on the outer wall of the fixing ring (242), an extrusion groove (247) opened on the outer wall of the movable ring (246), and a magnetic sheet (248) uniformly fixedly disposed on the outer wall of the movable ring (246).

6. The energy-saving complete ring network distribution cabinet according to claim 1, characterized in that: The cross component (25) includes a fixed frame (251) fixedly disposed on the inner wall of the connecting plate (21), an movable hole (252) opened on the inner wall of the fixed frame (251), a sliding groove (253) opened on the outer wall of the fixed frame (251), a connecting rod (254) slidably disposed on the outer wall of the fixed frame (251) through the sliding groove (253), a positioning shaft (255) fixedly disposed on the inner walls of both sides of the connecting rod (254), a magnetic rotating rod (256) symmetrically rotatably disposed on the outer wall of the positioning shaft (255), and a magnetic column (257) slidably disposed on the outer wall of the magnetic rotating rod (256). The two ends of the magnetic column (257) are fixedly connected to the inner wall of the connecting plate (21).

7. The energy-saving ring main unit power distribution cabinet according to claim 6, characterized in that: The inner wall of the fixed frame (251) is slidably connected to the outer wall of the push rod (26) through the movable hole (252), and the outer end face of the push rod (26) is fixedly connected to the outer wall of the clamping block (241).

8. A side-expansion sleeve for a distribution cabinet, installed in the energy-saving complete ring network distribution cabinet as described in claim 7, characterized in that, The sleeve assembly (3) is installed inside the connecting assembly (2). The sleeve assembly (3) includes a conductive tube (31), a connecting ring (32) fixedly disposed on the outer wall of the conductive tube (31), a first umbrella skirt (33) fixedly disposed on the outer wall of the conductive tube (31), and a second umbrella skirt (34) fixedly disposed on the outer wall of the conductive tube (31).

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